I've read a fair bit about different pre-lubers that keep your engine from being started without oil in the bearings. I can't even consider one until my warranty expires, but I was curious if anyone has ever owned one and what they concluded. Need to be a pretty long term test to see upside, but downsides could show up quick I guess.

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another

On a street car, probably not. There are benefits for a racecar but the majority of street-only driven car will see no benefit. It's just as easy to install an oil pressure kill switch to the ignition. That way the engine will just crank until oil pressure is built then the car will start. But even that is probably overkill.

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another

I don't think most engines ever suffer from lubrication issues. It seems that most cars go to the junkyard without ever having had a problem that could have been prevented by pre-lubing, better quality oil/filter, or more frequent oil changes.

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another

My last car died from rust. It ran just fine. Of course I bought it for $100 and it was used as a winter beater, so your results may vary.

See what I mean? The next car that you keep until its death will die from rust, or from transmission failure, or fuel injection, or head gasket, or valves, or whatever...

The obsession that people have with trying to improve lubrication is entirely without foundation, based on the data I've informally gathered. There's a few cars that are more sensitive to lubrication issues, but most are not.

The websites selling these things blatantly lie as well, of course. One place I emailed asking specific technical questions would only reply with their standard claims and "so buy now!". After my third message asking them to clarify something specific, they just stopped replying. Never answered a single damn thing.

: a psychological condition or a relationship in which a person is controlled or manipulated by another who is affected with a pathological condition (as an addiction to alcohol or heroin) ; broadly : dependence on the needs of or control by another